<template>
  <div class="report">
     <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-row :gutter="10">
      <el-col :span="6">
        <el-button type="primary" @click="click">查看实时更新数据</el-button>
      </el-col>
    </el-row>
    <el-card style="margin-top: 20px;">
       <!-- 2. 为 ECharts 准备一个具备大小（宽高）的 DOM -->
      <div id="main" style="width: 100%;height:400px;" ref=charts></div>
    </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'lodash'
export default {
  data () {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created () {
  },
  async mounted () {
    // 3. 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))
    const { data: res } = await this.$http.get('reports/type/1')
    if (res.meta.status !== 200) return this.$message.error('获取报表失败')
    // 指定图表的配置项和数据
    const result = _.merge(res.data, this.options)
    // 4. 使用刚指定的配置项和数据显示图表。
    myChart.setOption(result)
  },
  methods: {
    click () {
      location.href = 'http://localhost:8999/#/screen'
    }
  }

}
</script>

<style>

</style>
